A lifting assist device

Abstract

The present invention belongs to the technical field of thin-walled ring part assembly, and discloses a lifting auxiliary device. It is arranged inside the ring of the ring-shaped part and includes a main beam and a support module. The support module includes a turntable and at least three groups of support components. The turntable is rotatably connected to the main beam; the support component includes a support leg and a pull rod. The support leg is slidably connected to the guiding part of the main beam, and the two ends of the pull rod are respectively hinged to the support leg and the turntable; under the common restraint of the guiding part and the pull rod, when the turntable is rotated in the first direction, the support leg extends outward along the guiding part with the pull rod to be fixed to the ring-shaped part, and when the turntable is rotated in the second direction, the support leg retracts inward along the guiding part with the pull rod to be separated from the ring-shaped part. The lifting auxiliary device of the present invention has universality and is convenient for disassembly and assembly, thereby improving the lifting efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of thin-walled ring-shaped part assembly, and particularly to a hoisting auxiliary device. Background Art

[0002] When assembling large thin-walled parts, hoisting holes or hoisting structures are usually not provided due to strength problems, and a special auxiliary device is needed to assist hoisting for assembly. In the prior art, the hoisting auxiliary device has poor versatility, and corresponding hoisting auxiliary devices need to be equipped for different thin-walled parts, which increases the cost; in addition, the existing hoisting auxiliary device has a complex structure, is inconvenient to disassemble and assemble with the thin-walled part, and has poor operability, thus resulting in low hoisting efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a hoisting auxiliary device, which has versatility and is convenient for disassembly and assembly, thereby being able to improve the hoisting efficiency.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] Provide a hoisting auxiliary device, which is arranged inside the ring of the ring-shaped part and includes a main beam and a support module. The support module includes:

[0006] A turntable, rotatably connected to the main beam;

[0007] At least three support components. The support component includes a support leg and a pull rod. The support leg is slidably connected to the guiding portion of the main beam, and both ends of the pull rod are respectively hinged to the support leg and the turntable;

[0008] Under the common restraint of the guiding portion and the pull rod, when the turntable is rotated in a first direction, the support leg extends outward along the guiding portion with the pull rod to be fixed to the ring-shaped part. When the turntable is rotated in a second direction, the support leg retracts inward along the guiding portion with the pull rod to be separated from the ring-shaped part.

[0009] Optionally, the support leg and / or the turntable can be detachably connected to the main beam.

[0010] Optionally, the main beam includes a fixing plate and at least three guiding rods radially arranged around the fixing plate. The guiding rods are the guiding portions, and the turntable is rotatably connected to the fixing plate.

[0011] Optionally, it further includes a first baffle, and the first baffle is connected to the end of the guiding rod and is used to block the support leg.

[0012] Optionally, a stepped shaft is axially arranged on the side surface of the fixed plate, the turntable is rotatably connected to the stepped shaft, the lifting auxiliary device further includes a second baffle, the second baffle is connected to the end of the stepped shaft and abuts against one end of the turntable, and the other end of the turntable abuts against the stepped surface of the stepped shaft.

[0013] Optionally, the guide rod is a rectangular rod, the support leg is provided with a rectangular hole, the support leg is passed through the guide rod through the rectangular hole, and the rectangular hole and the guide rod are in sliding fit.

[0014] Optionally, an operating rod is connected to the side of the turntable facing away from the fixed plate, and the operating rod can extend out of the circumferential surface of the fixed plate.

[0015] Optionally, the support leg is L-shaped and includes a transverse portion and a longitudinal portion connected to each other. The longitudinal portion is slidably connected to the guiding portion, and the transverse portion can support the bottom end of the annular member.

[0016] Optionally, it further includes a plurality of adjusting blocks with different thicknesses and shapes, and the plurality of adjusting blocks can be alternatively arranged between the longitudinal portion and the inner wall of the annular member.

[0017] Optionally, it further includes:

[0018] A buffer pad, the buffer pad is arranged on the side of the transverse portion close to the longitudinal portion, and the buffer pad is used for padding at the bottom end of the annular member; and / or

[0019] A backing plate, the backing plate is connected to the side of the transverse portion facing away from the longitudinal portion.

[0020] Advantages of the present invention:

[0021] A lifting auxiliary device provided by the present invention, the pull rod is hinged to the support leg and the pull rod and the turntable respectively. Rotating the turntable realizes the synchronous movement of the support legs. The movement is transmitted between the turntable and the support legs through the pull rod. The support legs are adjustable and move synchronously with the turntable, realizing quick disassembly and assembly and being convenient for single-person operation, improving the operation efficiency, being applicable to the operation of annular parts with different diameters, having strong versatility, simple operation, simple structure, and low use cost. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the lifting auxiliary device provided by the specific embodiment of the present invention in a state of connecting an annular member;

[0023] Figure 2 is a bottom view of the lifting auxiliary device provided by the specific embodiment of the present invention in a state of connecting an annular member;

[0024] Figure 3 isFigure 2 A-A cross-sectional view.

[0025] In the figure:

[0026] 100, annular member;

[0027] 1, main beam; 11, guide rod; 111, stepped shaft; 12, fixing plate;

[0028] 2, support module; 21, turntable; 211, operating rod; 22, support assembly; 221, support leg; 2211, horizontal part; 2212, vertical part; 222, pull rod;

[0029] 3, first baffle; 4, second baffle; 5, buffer pad; 6, backing plate; 7, adjusting block; 8, buffer plate. Specific embodiments

[0030] To make the technical problems solved by the present invention, the technical solutions adopted, and the achieved technical effects clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0031] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0032] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0033] This embodiment provides a lifting assistance device, as Figures 1 - 3As shown in the figure, it is arranged inside the ring of the annular member 100 and includes a main beam 1 and a support module 2. The support module 2 includes a turntable 21 and at least three groups of support components 22. The turntable 21 is rotatably connected to the main beam 1. The support component 22 includes a support leg 221 and a pull rod 222. The support leg 221 is slidably connected to the guiding portion of the main beam 1. Two ends of the pull rod 222 are respectively hinged to the support leg 221 and the turntable 21. Under the common restraint of the guiding portion and the pull rod 222, when the turntable 21 is rotated in the first direction, the support leg 221 extends outward along the guiding portion with the pull rod 222 to be fixed to the annular member 100. When the turntable 21 is rotated in the second direction, the support leg 221 retracts inward along the guiding portion with the pull rod 222 to be separated from the annular member 100. The first direction is opposite to the second direction.

[0034] When lifting the annular member 100, first rotate the turntable 21 in the first direction. During the rotation of the turntable 21, the pull rod 222 hinged thereto is driven to rotate. The support leg 221 extends outward along the guiding portion with the pull rod 222. According to the inner diameter size of the annular member 100, determine the extending position of the support leg 221. After placing the annular member 100 around the lifting auxiliary device, fix it to the lifting auxiliary device. Lift the part of the main beam 1 through a hoist and a lifting ring, so that the annular member 100 is lifted together with the lifting auxiliary device. Before lifting, the lifting auxiliary device can be fixed to the annular member 100 after adjusting the position of the support leg 221 by rotating the turntable 21. After the lifting is completed, rotate the turntable 21 in the second direction to release the fixing relationship between the lifting auxiliary device and the annular member 100, and then the lifting auxiliary device can be disassembled.

[0035] The present invention solves the problem of lifting large thin-walled parts without a lifting hole or a lifting structure. The pull rod 222 is respectively hinged to the support leg 221 and the turntable 21. Rotating the turntable 21 realizes the synchronous movement of the support leg 221. The movement is transmitted between the turntable 21 and the support leg 221 through the pull rod 222. The support leg 221 is adjustable and moves synchronously with the turntable 21, realizing quick disassembly and assembly and being convenient for single-person operation, improving the operation efficiency, being applicable to annular parts with different diameters, having strong versatility, being simple in operation, having a simple structure, and having a low use cost.

[0036] In this embodiment, three groups of support components 22 are arranged at uniform intervals. In other embodiments, four groups or more than five groups can also be arranged, and corresponding settings can be made according to the shape, size, weight, etc. of the annular member 100, without limitation. In this embodiment, the annular member 100 is circular. In other embodiments, the annular member 100 can also be a regular shape such as a triangle or a quadrilateral or an irregular shape, without limitation.

[0037] Optionally, the support leg 221 and / or the turntable 21 can be detachably connected to the main beam 1. Specifically, after the position of the support leg 221 is adjusted, a pin is used to fix between the support leg 221 and the main beam 1 or between the turntable 21 and the main beam 1, preventing the support leg 221 from moving randomly and improving safety and reliability.

[0038] In this embodiment, as Figure 1 shown, the main beam 1 includes a fixing plate 12 and at least three guide rods 11 radially arranged around the fixing plate 12. The guide rods 11 are guiding parts. The turntable 21 is rotatably connected to the fixing plate 12. The guide rods 11 are arranged radially. The support leg 221 is slidably connected to the guide rods 11. The position of the support leg 221 can be adjusted according to the inner diameter of the annular member 100, which is more convenient for adjustment. In other embodiments, the guiding part can also be a guiding groove radially opened on the fixing plate 12, and the support leg 221 includes a sliding table cooperating with the guiding groove; or the guiding part can also be a guiding platform protruding from the fixing plate 12, and the support leg 221 includes a sliding groove cooperating with the guiding platform, which is not limited.

[0039] In this embodiment, as Figure 1 and Figure 3 shown, ribs are protruded on the fixing plate 12, and the ribs extend outward to form the guide rods 11. The protruded ribs can improve the structural strength of the main beam 1. Optionally, mounting holes are opened on the fixing plate 12, which is convenient for later connection with the lifting device.

[0040] In this embodiment, as Figure 1 and Figure 3 shown, the fixing plate 12 is a triangular plate with an equilateral triangle cross-section. The ribs are located on the median line, and the guide rods 11 extend radially outward from the tip position of the triangular plate. Specifically, the fixing plate 12 and the guide rods 11 can be an integrally formed structure or a split structure, which is not limited.

[0041] Optionally, as Figure 2 and Figure 3 shown, the turntable 21 is a triangular plate with an equilateral triangle cross-section. The side length of the turntable 21 is smaller than the side length of the fixing plate 12. The pull rod 222 is hinged at the tip position of the turntable 21. When the tip of the turntable 21 faces the tip of the fixing plate 12, the pull rod 222 is straightened, and the support leg 221 is at the longest extended position, from which the maximum inner diameter of the annular member 100 that can assist in lifting can be determined.

[0042] Specifically, the central position of the turntable 21 is rotatably connected to the central position of the fixing plate 12.

[0043] Optionally, as Figures 1 - 3As shown, an operating rod 211 is connected to the side of the turntable 21 facing away from the fixed plate 12. The operating rod 211 can extend out of the circumferential surface of the fixed plate 12. The turntable 21 can be driven to rotate by the operating rod 211. The operating rod 211 extending out of the outer periphery of the fixed plate 12 can be toggled, or the operating rod 211 can be held, which is convenient for operation. Specifically, the operating rod 211 and the turntable 21 can be an integral structure or a split structure, which is not limited.

[0044] Optionally, as Figure 1 and Figure 3 shown, the lifting auxiliary device further includes a first baffle 3. The first baffle 3 is connected to the end of the guide rod 11. The first baffle 3 is used to block the support leg 221 to prevent the support leg 221 from slipping off, improving safety and reliability. Specifically, the lifting auxiliary device further includes a buffer plate 8. The buffer plate 8 is connected to the side of the first baffle 3 facing away from the guide rod 11 to prevent the inside of the annular member 100 from colliding with the first baffle 3 and being damaged, improving the structural reliability. Specifically, the buffer plate 8 can be a nylon plate. Specifically, the buffer plate 8 and the first baffle 3 are both fixed to the guide rod 11 by fasteners.

[0045] Optionally, as Figure 3 shown, a stepped shaft 111 is axially provided on the side surface of the fixed plate 12. The turntable 21 is rotatably connected to the stepped shaft 111. The lifting auxiliary device further includes a second baffle 4. The second baffle 4 is connected to the end of the stepped shaft 111 and abuts against one end of the turntable 21. The other end of the turntable 21 abuts against the stepped surface of the stepped shaft 111. The turntable 21 is rotatably connected to the fixed plate 12 through the stepped shaft 111. The stepped surface of the stepped shaft 111 and the second baffle 4 achieve the axial limit of the turntable 21, improving the structural reliability. Specifically, the second baffle 4 is connected to the stepped shaft 111 by threaded fasteners. Specifically, the stepped shaft 111 is provided at the central position of the fixed plate 12, and an installation hole matching the stepped shaft 111 is provided at the middle position of the turntable 21.

[0046] Optionally, as Figure 1 and Figure 3 shown, the support leg 221 is L-shaped and includes a transverse portion 2211 and a longitudinal portion 2212 connected to each other. The longitudinal portion 2212 is slidably connected to the guiding portion. The transverse portion 2211 can support the bottom end of the annular member 100. The axial limit of the annular member 100 is achieved through the transverse portion 2211, improving the reliability. Specifically, the support leg 221 is an integral structure or a split structure.

[0047] Optionally, as Figures 1 - 3As shown, the guide rod 11 is a rectangular rod, and the support leg 221 is provided with a rectangular hole. The support leg 221 passes through the guide rod 11 through the rectangular hole, and the rectangular hole and the guide rod 11 are in sliding fit. Through the cooperation of the rectangular rod and the rectangular hole, the circumferential limit of the support leg 221 on the guide rod 11 is realized, avoiding the rotation of the support leg 221 and improving the reliability. In this embodiment, the rectangular hole is opened at one end of the longitudinal part 2212 away from the transverse part 2211. The longitudinal part 2212 is provided with an installation hole, and the pin passes through the installation hole and abuts against the guide rod 11, thereby realizing the fixation of the support leg 221 to the main beam 1. Specifically, the pull rod 222 is hinged on the longitudinal part 2212.

[0048] Optionally, as Figures 1 - 3 shown, the lifting auxiliary device further includes a plurality of adjustment blocks 7 with different thicknesses and shapes. The plurality of adjustment blocks 7 can be selectively arranged between the longitudinal part 2212 and the inner wall of the annular member 100. By adjusting the thickness of the adjustment block 7 to fill the space between the support leg 221 and the inner wall of the annular member 100, the circumferential limit is realized; by adjusting the shape of the adjustment block 7, it can adapt to the shapes of the support leg 221 and the inner wall of the annular member 100 to make them fit together, improving the reliability. Specifically, the adjustment block 7 is a nylon block, which improves the protection effect on the annular member 100. In this embodiment, the adjustment block 7 is fixed to the longitudinal part 2212 by fasteners.

[0049] Optionally, as Figure 1 and Figure 3 shown, the lifting auxiliary device further includes a buffer pad 5. The buffer pad 5 is arranged on the side of the transverse part 2211 close to the longitudinal part 2212. The buffer pad 5 is used to pad the bottom end of the annular member 100 to avoid collision and damage between the annular member 100 and the transverse part 2211, improving the reliability; specifically, the buffer pad 5 is a nylon plate; further, the buffer pad 5 is fixed to the transverse part 2211 by fasteners.

[0050] Optionally, as Figure 1 and Figure 3 shown, the lifting auxiliary device further includes a backing plate 6. The backing plate 6 is connected to the side of the transverse part 2211 away from the longitudinal part 2212, preventing the bottom of the support leg 221 from scratching the operator, and at the same time playing a role in protecting the support leg 221 from wear. Specifically, the backing plate 6 is a nylon plate.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A lifting auxiliary device, characterized in that, it is arranged inside the ring of the annular member (100), and includes a main beam (1) and a support module (2), and the support module (2) includes: a turntable (21) rotatably connected to the main beam (1); at least three support assemblies (22), the support assembly (22) includes a support leg (221) and a pull rod (222), the support leg (221) is slidably connected to the guiding portion of the main beam (1), and both ends of the pull rod (222) are respectively hinged to the support leg (221) and the turntable (21); Under the common restraint of the guiding portion and the pull rod (222), when the turntable (21) is rotated in the first direction, the support leg (221) extends outwards along the guiding portion with the pull rod (222) to be fixed to the annular member (100), and according to the inner diameter size of the annular member (100), the extending position of the support leg (221) is determined. When the turntable (21) is rotated in the second direction, the support leg (221) retracts inwards along the guiding portion with the pull rod (222) to be separated from the annular member (100); The main beam (1) includes a fixing plate (12) and at least three guiding rods (11) radially arranged around the fixing plate (12), the guiding rods (11) are the guiding portions, and the turntable (21) is rotatably connected to the fixing plate (12); One side of the turntable (21) facing away from the fixing plate (12) is connected with an operating rod (211), and the operating rod (211) can extend out of the circumferential surface of the fixing plate (12).

2. The lifting auxiliary device according to claim 1, characterized in that, the support leg (221) and / or the turntable (21) can be detachably connected to the main beam (1).

3. The lifting auxiliary device according to claim 1, characterized in that, it further includes a first baffle (3), the first baffle (3) is connected to the end of the guiding rod (11), and the first baffle (3) is used to block the support leg (221).

4. The lifting auxiliary device according to claim 1, characterized in that, a stepped shaft (111) is axially arranged on the side surface of the fixing plate (12), the turntable (21) is rotatably connected to the stepped shaft (111), the lifting auxiliary device further includes a second baffle (4), the second baffle (4) is connected to the end of the stepped shaft (111) and abuts against one end of the turntable (21), and the other end of the turntable (21) abuts against the stepped surface of the stepped shaft (111).

5. The lifting auxiliary device according to claim 1, characterized in that, the guiding rod (11) is a rectangular rod, the support leg (221) is provided with a rectangular hole, the support leg (221) passes through the guiding rod (11) through the rectangular hole, and the rectangular hole and the guiding rod (11) are in sliding fit.

6. The lifting auxiliary device according to any one of claims 1-5, characterized in that, The supporting leg (221) is L-shaped and includes a horizontal portion (2211) and a vertical portion (2212) that are connected to each other. The vertical portion (2212) is slidably connected to the guiding portion, and the horizontal portion (2211) can support the bottom end of the annular member (100).

7. The lifting assistance device according to claim 6, wherein, it further includes a plurality of adjusting blocks (7) with different thicknesses and shapes, and the plurality of adjusting blocks (7) can be alternatively arranged between the vertical portion (2212) and the inner wall of the annular member (100).

8. The lifting assistance device according to claim 6, wherein, it further includes: a buffer pad (5), the buffer pad (5) is arranged on a side of the horizontal portion (2211) close to the vertical portion (2212), and the buffer pad (5) is used for padding the bottom end of the annular member (100); and / or a backing plate (6), the backing plate (6) is connected to a side of the horizontal portion (2211) facing away from the vertical portion (2212).

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